{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "We evaluated the likelihood of tissues to be positive for carcinoembryonic antigen and the intensity of carcinoembryonic antigen staining in specimens of villous adenomas , mixed polypoid villous adenomas , polypoid adenomas , and diverticulitis using the peroxidase - antiperoxidase technique ."}
{"GENE": ["carcinoembryonic antigen", "peroxidase", "antiperoxidase"]}